i'm randall pinkston in boston. >>reporter: i'm begat cheban in chicago. the president began with his supporters here in his hometown this morning and played basketball with his friends. president obama arrived in chicago last night. he cast his ballot in early voting there almost two weeks ago. vice president joe biden voted this morning in his home state of delaware. even though the race is tight, obama's team predicts a victory. >> anyone wants to win the national election ought to speak to the concerns of the entire nation. this president does and he's going to win tonight. >>reporter: at a final campaign stop in iowa last night, the president made one last plea for votes. >> it's out of my hands now. it's in yours. >>reporter: both sides know it all comes down to who's better at getting their supporters out in battleground states. begat cheban, cbs news, chicago. >>> and it looks like voter turnout is huge for the presidential election and there are some big races on the ballot in washington d.c. some people are waiting in line for hours in order to c